Adhesive unit



Feb. 11, 1936. H, E. CARPENTER 2,030,135

ADHESIVE UNIT Filed NOV. 1, 1932 INVENTOR HAP/2V E. CARPENTER ATTORNEY Patented Feb. 11, 1936 UNITED STATES PATENT OFFICE ADHESIVE UNIT California Application November 1, 1932, Serial No. 640,623

7 Claims.

My invention relates to the art of aflixing paper signs, pictures or displays of similar nature on supporting surfaces such as walls, posts, sign boards, show cases and windows, and relates more specifically to an adhesive unit by which the signs or displays are attached to the supporting structure. Ordinarily paper or cardboard signs are attached to the supporting structure by means of glue compositions coated on the back of such articles or by glued tape or stickers which are pasted over the sign and extend onto the supporting structure, one side of such strips only having a glue coating. With the ordinary articles of this type it is necessary to scrape the glue strip or residue from the supporting structure which makes the use of such articles highly undesirable. The use of such ordinary articles is limited to use on other than supporting surfaces which are liable to being marred by removal of the sign after its useful purpose, such as glass or metal surfaces.

The principal object of my invention is to provide what I have termed adhesive units of simple form in which a strip of paper or similar material is partially coated on both sides with an adhesive material commonly referred to as a pressure sensitive adhesive, such as that having a rubber base, which will not injure any surface. on which it may be placed and which, by reason of partial coating, has a free portion which can be grasped to remove the strip when removal is desired or necessary.

Other objects and advantages will appear hereinafter from the following description and draw- 1ng.

Referring to the drawing which is for illustrative purposes only- Fig. 1 is a perspective view of a unit embodying a. form of my invention;

Fig. 2 is a view similar to Fig. 1 in which the edges of one of the cover strips and an edge of the adhesive strip are pulled back to better illustrate the construction of the unit;

Fig. 3 is a perspective view of a unit like that shown in Fig. 1 illustrating the first operation of removing one of the cover strips;

Fig. 4 is a perspective view showing the manner of application of the unit to the back of a sign or display;

Fig. 5 is a perspective view of the back of the sign or display with an adhesive strip on each of the four corners of the sign;

Fig. 6 is a modified form of my invention in which the adhesive unit is made in the form of a roll;

Fig. 7 is a perspective view of a piece of the unit removed from the roll; and

Fig. 8 is a perspective view of a portion of a sign or display showing the application of an adhesive strip of the roll type to the sign.

Referring more particularly to the form shown in Figs. 1 to 5 inclusive, II designates a strip which, as shown in Fig. 2, is coated on both sides as indicated at l2, which coating extends over such strip except at one end as indicated at l3 which leaves one end of the adhesive strip which may be grasped without contact with the adhesive coating.

14 and 15 designate, what I have termed, cover strips which may be made of any suitable nonadhesive material such as Holland cloth which is tough and not liable to tear, and at the same time aifords a protective covering for the gum due to the fact that such material is air tight and not absorptive of the gum. These cover strips are pressed against and adhere to the gummed surfaces of the adhesive strip and afford a protective cover for such strip. As one end l3 of the adhesive strip is uncoated, the cover strips are free at such end as shown in Figs. 1 to 4.

In this form of my invention it will be understood that the units, each consisting of an adhesive strip with a cover strip on each side thereofQmay be packed for sale loosely in a box or package without any liability of the units becoming stuck together.

These adhesive units are used in the following manner. As shown in Fig. 3, the free end I3 of the adhesive strip II and one cover strip is grasped by the fingers of one hand, and one cover strip, indicated at M, stripped from the'adhesive strip. The uncovered face of the adhesive strip is then placed without any necessity of moistening against the back of the poster I! and the remaining cover strip I5 grasped by the fingers of one hand at its free end and stripped from the adhesive strip as shown in Fig. 4, the fingers of the other hand holding the adhesive strip on the poster by means of the ungummcd end l3. This operation results in placing on the back of a poster, sign or similar article, an adhesive strip by means of which the poster may be attached to a supporting surface, such as a window, show case, or any hard, smooth, dry surface, Fig. 5 illustrating an adhesive strip on the back of the poster at each corner thereof so that the poster can be attached at the corners. No moisture is applied during such operation.

The. removal of the poster is effected by tearing the poster away after which the adhesive strips are removed from the supporting surface by grasping the ungummed portion of the strip and pulling the strip away leaving the surface unmarred and in its original condition.

It will be understood that the operations above described are materially assisted by the use of an adhesive of the kind having a rubber base, such as has been termed a pressure sensitive adhesive, and that the use of such material permits the use or application of adhesive strips of that nature to the finest surfaces without danger of marring such surfaces on their removal.

As shown in Fig. 1, it will be noted that the ends of the cover strips l4 and I5 at the ungummed end of the adhesive strip bend slightly away from the adhesive strip. This being noticeable denotes to the user the finger grip feature of the unit.

In the form of my invention shown in Figs. 6 to 8 inclusive, the unit is made in the form of a roll indicated at 20, consisting of an adhesive strip 2| and a cover strip 22 of Holland cloth or the like. In this form the adhesive strip 2| is coated with gum or adhesive material, as indicated. at 23 in Fig. '7, on both sides, the gum, however, being placed centrally of the strip, leaving an uncoated margin indicated at 24 along each edge of the strip. This uncoated margin leaves a. portion'of the strip which affords means for handling the strip. When on the roll, as shown in Fig. 6, it will be noted that the adhesive strip 2| lies between two layers or strips of cloth or fabric 22. When used, the adhesive strip with its cover strip of cloth is directly applied to the poster l1 and the cover strip removed as shown in Fig. 8, leaving the adhesivestrip exposed for attachment to any supporting surface. While I have shown and described my inventio as embodied in the form of strips, it is to be understood that variousforms of units may be each side of the adhesive member, said adhesive member comprising a single thickness of material which is of substantially uniform thickness throughout its entire area.

3. An adhesive unit comprising, an adhesive paper strip having both sides thereof partially coated with a pressure sensitive adhesive material, and fabric cover strips on both sides of the adhesive strip detachably secured thereto by the adhesive coating of the adhesive strip, said adhesive paper strip comprising a single thickness of paper throughout its entire area.

4. An adhesive unit comprising, an adhesive strip member having each side partially coated with a rubber composition adhesive material, and a removable cover strip on each side of said adhesive strip member, said adhesive member comprising a single thickness of material which is of substantially uniform thickness throughout its entire area.

5. An adhesive unit comprising, an adhesive strip member having on both sides pressure sensitive adhesive coating extending adjacent one end thereof leaving an uncoated end portion, and a cover strip on said adhesive strip member removably attached thereto by the adhesive coating on the adhesive strip member, said adhesive member comprising a single thickness of material which is of substantially uniform thickness throughout its entire area, the uncovered side of said adhesive strip being attachable to a surface by pressure on the cover strip.

6. An adhesive unit comprising an adhesive strip having both sides coated with pressure sensitive adhesive material, one side of said strip being partially coated with said pressure sensitive material, and a detachable non-adhesive cover strip on said pressure sensitive material, said adhesive strip comprising a single thickness of material which is of substantially uniform thickness throughout its entire area, the uncovered side of said adhesive strip being attachable to a surface by pressure on the cover strip.

'7. An adhesive unit comprising an adhesive strip having both sides coated with pressure sensitive adhesive material, and a detachable nonadhesive cover strip on one side of said adhesive strip, said adhesive strip comprising a single thickness of material which is of substantially uniform thickness throughout its entire area, the uncovered side of said adhesive strip being attachable to a surface by pressure on the cover strip.

HARRY E. CARPENTER. 

